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A new and distinct hybrid wine grapevine plant named `BN5-4,
characterized by the following unique combination of characteristics:
Very vigorous with extremely high disease resistance in the southeastern
United States, including resistance to bacterial Pierce's disease and a
host of fungal diseases. Average- to high-yielding vines, with dark,
purple-skinned, seeded berries. Wine from the variety may be produced to
be light red with a pleasant character and low residual sugar, or with a
foxy character.

Inventors:

Mortensen; John; (Marianna, FL)

Applicant:

Name

City

State

Country

Type

Florida Foundation Seed Producers, Inc.

Marianna

FL

US

Appl. No.:

14/545468

Filed:

May 7, 2015

Current U.S. Class:

PLT/206

Class at Publication:

PLT/206

International Class:

A01H 5/00 20060101 A01H005/00

Goverment Interests

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH

[0001] This invention was made with government support awarded by the
Cooperative State Research, Education, and Extension Service, USDA. The
government has certain rights in this invention.

Claims

1. A new and distinct grapevine plant substantially as illustrated and
described herein, characterized by high vigor and durability in the
Floridian environment with use for production of red wine.

Description

LATIN NAME OF THE GENUS AND SPECIES OF THE PLANT CLAIMED

[0002] Vitis sp.

VARIETY DENOMINATION

[0003] `BN5-4`

BACKGROUND OF THE INVENTION

[0004] The present invention relates to a new and distinct variety of
grapevine named `BN5-4`. `BN5-4` produces dark-purple-colored grape
berries on bunches for use in wine production. `BN5-4` originated in 1987
as a selected seedling from a controlled cross between a native Vitis
aestivalis vine (female parent) pollinated with the self-fertile Vitis
interspecific hybrid cultivar `Remaily Seedless` (male parent). The
seedling plant originally was named `BN5-4` because it was the fourth
seedling in the fifth row of "BN" block, which was located in Leesburg,
Fla. The seedling plant was vegetatively propagated by cuttings to create
several hundred identical clone plants for further evaluation. `BN5-4`
was continuously grown at the Leesburg, Fla. site until it closed in
1990. `BN5-4` then was re-established for further evaluation in Apopka,
Fla. Evaluation of `BN5-4` in the field for more than 25 years has
confirmed the vine to be reliably vigorous and resistant to bacterial
Pierce's disease, as well as a host of fungal diseases. `BN5-4` is
susceptible to Phylloxera, a leaf-gall-inducing insect, although leaf
galling does not noticeably affect growth, performance, or durability.

[0005] `BN5-4` was first asexually reproduced in 1988 by cuttings in
Leesburg, Fla. Asexual reproduction of `BN5-4` by dormant and green
cuttings shows that the foregoing and all other characteristics and
distinctions remain true to form and are established and transmitted
through succeeding propagations.

SUMMARY OF THE INVENTION

[0006] The present invention relates to a new and distinct interspecific
hybrid grapevine variety, which will hereinafter be denominated as
`BN5-4`, and more particularly as a self-fertile grapevine that is
remarkably vigorous and disease resistant in the sub-tropical Floridian
environment. The new Florida Hybrid Bunch Grape (FHBG) variety, `BN5-4`,
is distinguished from all other grape varieties by the following unique
combination of characteristics: vigorous growth in a humid, sub-tropical
environment, exemplary resistance to the endemic bacterial pathogen
Xylella fastidiosa, the causal agent of Pierce's disease, exemplary
resistance to a host of fungal diseases endemic to the humid sub-tropical
environment, and ability of the fruit to produce an acceptable dry light
red wine. Evaluation of wine quality from `BN5-4` has reached mixed
conclusions, ranging from good-to-poor, depending on harvest time and
fermentation methods. Under best practices, the wine produced by `BN5-4`
is lightly red-pigmented and can be finished dry, with little residual
sugar.

[0007] Female parent Vitis aestivalis is a vigorous female vine native to
Florida that produces small purplish berries, and male parent `Remaily
Seedless` is a self-fertile, green-berried, seedless variety developed at
Cornell University in 1981. `BN5-4` is distinct from the female parent by
being self-fertile, having leaves without deep sinuses, and with larger
fruit clusters. `BN5-4` differs from the male parent by having purple
berries and possessing seeds.

BRIEF DESCRIPTION OF THE DRAWINGS

[0008] `BN5-4` is illustrated by the accompanying photographs, which show
the vine's from, foliage, and fruit. The colors shown are as true as can
be reasonably obtained by conventional photographic procedures. The
colors (except those in common terms) are described from R.H.S. Colour
Chart published by The Royal Horticultural Society in London (second
edition), in association with the Flower Council of Holland.